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A098344 Consider the family of multigraphs enriched by the species of binary arborescences. Sequence gives number of those multigraphs with n loops and arcs. +0
1
1, 2, 21, 378, 9819, 338978, 14802427, 790660090, 50405704473, 3763429394138, 324142520562853, 31809195929392082 (list; graph; listen)
OFFSET

0,2

REFERENCES

G. Paquin, D\'enombrement de multigraphes enrichis, M\'emoire, Math. Dept., Univ. Qu\'ebec \`a Montr\'eal, 2004.

CROSSREFS

Sequence in context: A097627 A094797 A099710 this_sequence A091315 A087546 A090729

Adjacent sequences: A098341 A098342 A098343 this_sequence A098345 A098346 A098347

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Oct 26 2004

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Last modified December 20 16:54 EST 2009. Contains 171081 sequences.


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